Media outlets should be required to publish a correction of a story at least as visible and for at least as long as the initial incorrect version.
This would prevent a site from first claiming something and then burying the correction somewhere where nobody finds it.
I would very much love if the media outlets agree on self imposed "best practices for corrections".
Which in the end should be a benefit for those complying because they can advertise it and be more believable
I'm curious, how would you punish those who did not comply?
Publishers would just silently edit the article, forcing the federal government to monitor all news outlets content for changes. In the face of this daunting task, some naive senator would suggest that all news first be submitted to the fed for review.
The only solution to this problem is the nationalization of the news media, which would be a very bad thing. Sometimes the only way to win is not to play.